File:Ernst Alexanderson (1920).jpg

Ernst_Alexanderson_(1920).jpg ‎(314 × 442 pixels, file size: 55 KB, MIME type: image/jpeg)

Summary

Description
English: In 1920 Ernst Alexanderson was the Chief Engineer of the Radio Corporation of America. He is best known for the development of the Alexanderson Alternator radio transmitter.
Date
Source Photograph included with the article "The March of Science", on page 266.of the May 1920 issue of The New York Times Current History magazine
Author None listed

Licensing

Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Ernst_Alexanderson_(1920).jpg

Captions

Photograph of Ernst Alexanderson, circa 1920

Items portrayed in this file

depicts

File history

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Date/TimeThumbnailDimensionsUserComment
current21:29, 30 December 2021314 × 442 (55 KB)Thomas H. WhiteUploaded a work by None listed from Photograph included with the article "The March of Science", on page 266.of the May 1920 issue of The New York Times Current History magazine with UploadWizard
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  • Usage on ar.wikipedia.org
    • وسام إديسون
    • إرنست ألكسندرسون
  • Usage on arz.wikipedia.org
    • ارنست الكسندرسون
  • Usage on ca.wikipedia.org
    • Ernst Alexanderson
  • Usage on da.wikipedia.org
    • Ernst Alexanderson
  • Usage on de.wikipedia.org
    • Ernst Fredrik Werner Alexanderson
  • Usage on eo.wikipedia.org
    • Ernst Frederik Werner Alexanderson
  • Usage on es.wikipedia.org
    • Ernst Alexanderson
    • Usuario:Gerwoman/Taller16
  • Usage on fi.wikipedia.org
    • Ernst Alexanderson
  • Usage on fr.wikipedia.org
    • Ernst Alexanderson
  • Usage on hy.wikipedia.org
    • Էռնստ Ալեքսանդերսոն
  • Usage on it.wikipedia.org
    • Utente:Mess/Sandbox13
  • Usage on ja.wikipedia.org
    • アーンスト・アレキサンダーソン
  • Usage on ko.wikipedia.org
    • 에른스트 알렉산데르손
  • Usage on mg.wikipedia.org
    • Ernst Alexanderson
  • Usage on no.wikipedia.org
    • Ernst Alexanderson
    • Bruker:Cocu/Liste/Edison-medaljen
  • Usage on pl.wikipedia.org
    • Ernst Alexanderson
  • Usage on pt.wikipedia.org
    • Ernst Alexanderson
  • Usage on ru.wikipedia.org
    • Александерсон, Эрнест
  • Usage on sv.wikipedia.org
    • Ernst Alexanderson
  • Usage on tr.wikipedia.org
    • Ernst Alexanderson
  • Usage on uk.wikipedia.org
    • Ернест Александрсон
  • Usage on www.wikidata.org
    • Q472510
  • Usage on zh.wikipedia.org
    • 恩斯特·亚历山德森
    • 瑞典裔美國人
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